Thermo-electric element



(No Model.) I

G. W. IDEN.

THERMO ELEGTRIGDELEMBNT.

No. 461,437. Patented Oct. 20, 1891.

WIT/158858: l/VVEA/TUR m 27 Q 6 3 an m ATTORNEY.

UNITED STATES PATENT OFFICE.

cnAnnns w. IDEN, on NEw YORK, N. Y ASSIGNOR TO TI-IE 'lHERMO ELECTRIC COMPANY,

OF VEST V I'RGINIA.

Tl-i ERMo-EL oTmc ELEMENT.

. SPECIFICATION forming part of Letters Patent No. 461,437, dated October 20, 1891.

Application fijed Kay 13, 1891.

reference being'had tothe accompanying drawings.

This invention relates to an improved thermo-electric element which is practically indestructible under ordinary conditions of use, and which likewise gives a higher electro-motive force.

My invention will be readily understood f mm. the accompanying drawings,in which-- Figure 1 represents a transverse section, and Fig. 2 an end elevation, of my improved element.

My element consists, generally, of two parts-thehead A and the body B. The two connecting-conductors are shown at- C D. The

body B is composed of a metallic body having the power when heated of generating an electric current. I prefer to make it of sixty parts antimony and forty parts zinc. The head A I prefer to make of copper, 'while' the conductors C D are well made of nickel or an alloy of nickel.

The element in practice is. arranged as shown and heated under the projecting arm a by burner K. The head A is cast with a pocket, as shown at E. One part of the head,

- projecting downward, as at F, may be 'pro- Serial No. 392,582. (No model.)

vided with a hole G, through which the body may project. The inner surface of the head may be out at an angle, as shown' at H. A plug L, of nickel or similar material, is preferably soldered upon the copper, so that no oxidation of the joint between the connector 0 andthe copper head may occur.

The element is. formed by casting the body B into the head A, and the connector D, which may have a corrugated end, as shown, should also be cast in it.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. A thermoelectric element provided with an extension projecting from the body of the element and composed of a different material from the element itself and a source of heat supplied beneath said extension, substan-f CHARLES W. IDEN. \Vitnesses:

ANTHONY GREF,

WILLIAM M. ILEFF. 

